04-12-2014 01:57 PM - edited 04-12-2014 01:58 PM
I need a 8 GB stick of memory for my HP 840 G1 to make 16 GB, and your site shows several compatible pieces - not sure which one is best though and I can't tell what's installed other than 8 GB.
I use a lot of photoshop if that helps - thanks
04-14-2014 10:18 AM
Thank you for contacting us today. All of these upgrades are compatible with your system, it just comes down to the speed of the RAM in the end. For your system I would recommend Ballistix PC3-14900 RAM. This RAM is a bit faster than the other RAM listed for your system. Please let us know if you have any other questions or concerns.